The Icom AT-100 is an automatic external antenna tuner for 80 through 10 meters. Specific frequency range is: 3.5-4, 7-7.3, 10-10.5, 14-14.5, 18-18.5, 21-21.5 and 28-30 MHz. It provides autoband switching with several Icom transceivers including the IC-730 (requires LDA). Power capacity is 100 watts continuous, 200 watts PEP. Minimum drive power is 8 watts. The top panel access cover opens for adjustments for the Auto/Tune Preset switches, Preset timers and Preset Indicators. The AT-100 features one input SO-239 jack and four output SO-239 coaxial antenna jacks on the rear panel. Tune-up time is typically 4 to 7 seconds. The power requirement is 13.8 VDC or 117 VAC which is selectable from the rear panel. (241x111x300mm 5 kg).